<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>ajax知识2-数据联动</title>
  <link rel="stylesheet" href="../css/common.css">
</head>

<body>
  省份：<select id="selProvince"></select>
  城市：<select id="selCity"></select>
  <button id="btnShow">获取选中的信息</button>
  <span id="spShow"></span>

  <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
  <script src="https://cdn.bootcdn.net/ajax/libs/qs/6.10.1/qs.min.js"></script>

  <script src="js/ajax02.js"></script>
</body>

</html>